from __future__ import unicode_literals import os import uuid from django.core.urlresolvers import reverse from django.db import models from django.db.models import Q from django.utils.encoding import python_2_unicode_compatible from django.utils.translation import ugettext_lazy as _ from django.utils.timezone import now from django.contrib.auth.models import User from django.core.exceptions import ObjectDoesNotExist from django.core.exceptions import ValidationError from model_utils.managers import InheritanceManager from reversion import revisions as reversion from symposion.markdown_parser import parse from symposion.conference.models import Section from symposion.speakers.models import Speaker @python_2_unicode_compatible class ProposalSection(models.Model): """ configuration of proposal submissions for a specific Section. a section is available for proposals iff: * it is after start (if there is one) and * it is before end (if there is one) and * closed is NULL or False """ section = models.OneToOneField(Section, verbose_name=_("Section")) start = models.DateTimeField(null=True, blank=True, verbose_name=_("Start")) end = models.DateTimeField(null=True, blank=True, verbose_name=_("End")) closed = models.NullBooleanField(verbose_name=_("Closed")) published = models.NullBooleanField(verbose_name=_("Published")) @classmethod def available(cls): return cls._default_manager.filter( Q(start__lt=now()) | Q(start=None), Q(end__gt=now()) | Q(end=None), Q(closed=False) | Q(closed=None), ) def is_available(self): if self.closed: return False if self.start and self.start > now(): return False if self.end and self.end < now(): return False return True def __str__(self): return self.section.name @python_2_unicode_compatible class ProposalKind(models.Model): """ e.g. talk vs panel vs tutorial vs poster Note that if you have different deadlines, reviewers, etc. you'll want to distinguish the section as well as the kind. """ section = models.ForeignKey(Section, related_name="proposal_kinds", verbose_name=_("Section")) name = models.CharField(_("Name"), max_length=100) slug = models.SlugField(verbose_name=_("Slug")) def __str__(self): return self.name @python_2_unicode_compatible class ProposalBase(models.Model): objects = InheritanceManager() kind = models.ForeignKey(ProposalKind, verbose_name=_("Kind")) title = models.CharField(max_length=100, verbose_name=_("Title")) abstract = models.TextField( _("Abstract"), help_text=_("This will appear in the conference programme. Up to about " "500 words. Edit using Markdown.") ) abstract_html = models.TextField(blank=True) private_abstract = models.TextField( _("Private Abstract"), help_text=_("This will only be shown to organisers and reviewers. You " "should provide any details about your proposal that you " "don't want to be public here. Edit using Markdown.") ) private_abstract_html = models.TextField(blank=True) technical_requirements = models.TextField( _("Special Requirements"), blank=True, help_text=_("Speakers will be provided with: Internet access, power, " "projector, audio. If you require anything in addition, " "please list your technical requirements here. Such as: a " "static IP address, A/V equipment or will be demonstrating " "security-related techniques on the conference network. " "Edit using Markdown.") ) technical_requirements_html = models.TextField(blank=True) project = models.CharField( max_length=100, blank=True, help_text=_("The name of the project you will be talking about."), ) project_url = models.URLField( _("Project URL"), blank=True, help_text=_("If your project has a webpage, specify the URL here so " "the committee can find out more about your proposal.") ) video_url = models.URLField( _("Video"), blank=True, help_text=_("You may optionally provide us with a link to a video of " "you speaking at another event, or of a short 'elevator " "pitch' of your proposed talk.") ) submitted = models.DateTimeField( default=now, editable=False, verbose_name=_("Submitted") ) speaker = models.ForeignKey(Speaker, related_name="proposals", verbose_name=_("Speaker")) # @@@ this validation used to exist as a validators keyword on additional_speakers # M2M field but that is no longer supported by Django. Should be moved to # the form level def additional_speaker_validator(self, a_speaker): if a_speaker.speaker.email == self.speaker.email: raise ValidationError(_("%s is same as primary speaker.") % a_speaker.speaker.email) if a_speaker in [self.additional_speakers]: raise ValidationError(_("%s has already been in speakers.") % a_speaker.speaker.email) additional_speakers = models.ManyToManyField(Speaker, through="AdditionalSpeaker", blank=True, verbose_name=_("Addtional speakers")) cancelled = models.BooleanField(default=False, verbose_name=_("Cancelled")) def save(self, *args, **kwargs): self.abstract_html = parse(self.abstract) self.private_abstract_html = parse(self.private_abstract) self.technical_requirements_html = parse(self.technical_requirements) return super(ProposalBase, self).save(*args, **kwargs) def can_edit(self): return True @property def section(self): return self.kind.section @property def speaker_email(self): return self.speaker.email @property def number(self): return str(self.pk).zfill(3) @property def status(self): try: return self.result.status except ObjectDoesNotExist: return _('Undecided') def speakers(self): yield self.speaker speakers = self.additional_speakers.exclude( additionalspeaker__status=AdditionalSpeaker.SPEAKING_STATUS_DECLINED) for speaker in speakers: yield speaker def notification_email_context(self): return { "title": self.title, "main_speaker": self.speaker, "speakers": ', '.join([x.name for x in self.speakers()]), "additional_speakers": self.additional_speakers, "kind": self.kind.name, } def __str__(self): return self.title reversion.register(ProposalBase) @python_2_unicode_compatible class AdditionalSpeaker(models.Model): SPEAKING_STATUS_PENDING = 1 SPEAKING_STATUS_ACCEPTED = 2 SPEAKING_STATUS_DECLINED = 3 SPEAKING_STATUS = [ (SPEAKING_STATUS_PENDING, _("Pending")), (SPEAKING_STATUS_ACCEPTED, _("Accepted")), (SPEAKING_STATUS_DECLINED, _("Declined")), ] speaker = models.ForeignKey(Speaker, verbose_name=_("Speaker")) proposalbase = models.ForeignKey(ProposalBase, verbose_name=_("Proposalbase")) status = models.IntegerField(choices=SPEAKING_STATUS, default=SPEAKING_STATUS_PENDING, verbose_name=_("Status")) class Meta: unique_together = ("speaker", "proposalbase") verbose_name = _("Addtional speaker") verbose_name_plural = _("Additional speakers") def __str__(self): if self.status is self.SPEAKING_STATUS_PENDING: return _(u"pending speaker (%s)") % self.speaker.email elif self.status is self.SPEAKING_STATUS_DECLINED: return _(u"declined speaker (%s)") % self.speaker.email else: return self.speaker.name def uuid_filename(instance, filename): ext = filename.split(".")[-1] filename = "%s.%s" % (uuid.uuid4(), ext) return os.path.join("document", filename) class SupportingDocument(models.Model): proposal = models.ForeignKey(ProposalBase, related_name="supporting_documents", verbose_name=_("Proposal")) uploaded_by = models.ForeignKey(User, verbose_name=_("Uploaded by")) created_at = models.DateTimeField(default=now, verbose_name=_("Created at")) file = models.FileField(upload_to=uuid_filename, verbose_name=_("File")) description = models.CharField(max_length=140, verbose_name=_("Description")) def download_url(self): return reverse("proposal_document_download", args=[self.pk, os.path.basename(self.file.name).lower()])